A banner reading “Remembering June 4th, see you at Victoria Park” was spotted on Beacon Hill in Kowloon on Friday morning.
The pro-democracy League of Social Democrats party said volunteers hung the banner to commemorate the ones who died in the Tiananmen massacre on June 4, 1989.
An annual candlelit vigil will be held at Victoria Park in Causeway Bay on Saturday evening. The party urged Hong Kong people to attend.
Vice-chairman Raphael Wong Ho-ming said June 4 is a piece of a “mirror”.
“It shows who are the ones that were full of righteous words back then are now liars, full of preposterous arguments and lies,” he said. “It also reminds us of not to turn into those we loathe.”
Wong said people should not forget, should not stop commemorating and should not stop asking for vindication.
“Until the day that the Chinese Communist regime falls, until the day that those brave souls who died in June 1989 in Beijing can rest in peace,” he added.
The party previously displayed a banner from Beacon Hill asking for genuine universal suffrage when Chinese state leader Zhang Dejiang visited Hong Kong in May. It was removed by authorities within hours, citing safety issues.
Several similar banners asking for genuine universal suffrage were hung from nearby Lion Rock during the pro-democracy Occupy protests of 2014.
Update 11:30am – Firefighters have now removed the banner.